using System;
using System.Web.Mvc;

namespace Store.Controllers
{
    public class ProductController : Controller
    {
          public ActionResult Index()
          {
              // Add action logic here
              throw new NotImplementedException();
          }

          public ActionResult Details(int Id)
          {
              return View("Details");
          }
    }
}

using System.Web.Mvc;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Store.Controllers;

namespace StoreTests.Controllers
{
    [TestClass]
    public class ProductControllerTest
    {
          [TestMethod]
          public void TestDetailsView()
          {
              var controller = new ProductController();
              var result = controller.Details(2) as ViewResult;
              Assert.AreEqual("Details", result.ViewName);
          }
    }
}